wdg-base32 0.5.2

The Base32 Data Encoding
Documentation 
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impl B32Encode<u32,String> for B32<String>{
    fn encode(data:u32)->String{
        let mut string:String=String::with_capacity(8);
        unsafe{
            let vec=&mut string.as_mut_vec();
            vec.set_len(8);
            b32_encode_4(&data,1,ALPHABET32_ENCODE.as_ptr(),vec.as_mut_ptr());
        }
        return string;
    }
}

impl B32Decode<String,u32> for B32<u32>{
    fn validation(data:String)->B32DecodeError{
        return b32_validation(data.as_ptr(),data.len(),4,ALPHABET32_DECODE.as_ptr(),1,0b10,8,8,8);
    }
    fn decode(data:String)->Result<u32,B32DecodeError>{
        let ptr_data=data.as_ptr();
        let len_data=data.len();
        let ptr_alphabet=ALPHABET32_DECODE.as_ptr();

        let error=b32_validation(ptr_data,len_data,4,ALPHABET32_DECODE.as_ptr(),1,0b10,8,8,8);
        if error!=B32DecodeError::Null {return Err(error)};

        let mut n=0u32;
        b32_decode_4(ptr_data,len_data,ptr_alphabet,&mut n,1);
        return Ok(n);
    }
    unsafe fn unsafe_decode(data:String)->u32{
        let mut n=0u32;
        b32_decode_4(data.as_ptr(),data.len(),ALPHABET32_DECODE.as_ptr(),&mut n,1);
        return n;
    }
}